{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217405",
    "entityType": "User",
    "nonce": "0xd29f7f559433ddb4b9f3dd4619f71ed23e071516b3ed7b4eb9277d8c82be5762",
    "signature": "0x3638b5394a0cb5876f51e1ea53e05ed3423cd7fa6537771e91c00f25093fb66b3d3c2167d8c650caf4430f750358b126d5a53c9edf87c618decf614bc8c12cd21c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}