{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xce57910f085344ac629c85aed0a8545042afcc321c24f47dd957245473656d8d",
    "signature": "0x1728a8b64724fa7547e8e1cedbdddc43fda290286c30166e4b9bba4951d26f0a69830e552939a20f16237eafeff4c1a96952a58e82bfe294cee6b137001035c51b",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}